Custom Taxonomy Archive URL rewrite

Question

I would like to create an archive page with a list of my custom taxonomies that link to a page that shows posts with that taxonomy relationship.

I registered my taxonomy like this:

register_taxonomy('my_taxo', array('my_custom_post'), array(
            'hierarchical' => true,
            'label' => 'my taxo'
            'show_ui' => true,
            'query_var' => true,
            'show_in_nav_menus ' => true
            )
        );

What is the recommended way to create an archive page that can be visited at a url such as mysite.com/my_taxo or mysite.com/taxonomy/my_taxo.

Ideally the template file that will be used would be taxonomy-{taxonomy}.php.

Does this involve add_rewrite_rule? If so what might that look like?

Answer 1

WordPress doesn't generate an 'archive of terms' automatically. However, you're current permalink structure is set up so that:

www.example.com/my_taxo/my-term

points to the 'my-term' archive page of the 'my_taxo' taxonomy (listing all posts with the 'my-term' tag).

So what you can do is create a page with slug 'my_taxo':

www.example.com/my_taxo

Assign this page a custom template which simply lists the taxonomy terms with links.

The simpliest way would be to use wp_list_categories()

<?php
$args = array(
  'taxonomy'     => 'my_taxo',
  'orderby'      => 'name',
  'hierarchical' => 1
  'title_li'     => ''
);
?>

<ul>
<?php wp_list_categories( $args ); ?>
</ul>

Alternatively you can use get_terms to return an array of terms in that taxonomy, which you can loop through and display the terms.

Neither will handle pagination automatically - but get_terms allows you to specify both a limit and an offset - so you could handle pagination yourself if this is necessary.